Watch case



FIG. 1 is a front and right side perspective view of a watch case showing my new design;

FIG. 2 is a front elevation thereof;

FIG. 3 is a rear elevation thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a first side view thereof; and,

FIG. 7 is a second side view thereof, opposite the first side. 

The ornamental design for a watch case, as shown. 